80003993 has 2 divisors, whose sum is σ = 80003994. Its totient is φ = 80003992.

The previous prime is 80003983. The next prime is 80003999. The reversal of 80003993 is 39930008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78357904 + 1646089 = 8852^2 + 1283^2 .

It is a cyclic number.

It is not a de Polignac number, because 80003993 - 2¹⁶ = 79938457 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80003999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40001996 + 40001997.

It is an arithmetic number, because the mean of its divisors is an integer number (40001997).

Almost surely, 2^80003993 is an apocalyptic number.

It is an amenable number.

80003993 is a deficient number, since it is larger than the sum of its proper divisors (1).

80003993 is an equidigital number, since it uses as much as digits as its factorization.

80003993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 80003993 is about 8944.4951226998. The cubic root of 80003993 is about 430.8941067685.

The spelling of 80003993 in words is "eighty million, three thousand, nine hundred ninety-three".